Heat oil in pot. when hot add your spices and let "fry" to release the flavors and to toast slightly. Cook in oil for 2 - 3 mins.
Dice leftover chicken add to pot and cook for about 5 mins
Add stock, bullion, water and tomatoes and bring to a boil. Reduce heat and simmer 30 mins. Bring back to boil
Once back to a boil add tortellini and cook for 7 -9 mins until done. I served with side salad and garlic bread :)
**** Quick tip: I cook my tortellini's separate for my soups and stews and just add the soup over them. That way if i have leftovers from the soup the pasta does not get mushy. I store it wet (not in water) in a plastic container and it is so much better the next day like this :) I do this with all my dishes that have pasta in them and the waste is so much less! If I don't think there will be leftovers I add the pasta to the soup.